Control of cell cycle & cancer

Control of cell cycle & cancer: Feedback

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The control of the cell cycle is essential for the normal functioning of the body. Cyclins have a key role in this control. Oncogenes have the opposite effect and effectively remove the control of the cell cycle and the cells divides to form a tumor. This activity introduces students to these concepts without getting too complicated.

Lesson Description

Guiding Questions

What is the difference between the cell cycle and mitosis?

How is the cell cycle controlled?

Can the body stop cell division if something is wrong with the dividing cell?

Activity 1: Introduction to the control of the cell cycle and cancer

The cell cycle is normally controlled by proteins called cyclins and other chemicals.

At key stages the cell cycle will only continue when there is the correct level of cyclin.

Cancer is caused by the uncontrolled division of body cells.

Oncogenes prevent this normal control of the cell cycle and cause a cell to become cancerous.

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